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2.
Theriogenology ; 206: 18-27, 2023 Aug.
Article in English | MEDLINE | ID: mdl-37172535

ABSTRACT

Taxifolin is a plant flavonoid effective as an antioxidant. This study aimed to assess the effect of adding taxifolin to the semen extender during the cooling period before freezing on the overall post-thawing sperm variables of Bermeya goats. In the first experiment, a dose-response experiment was performed with four experimental groups: Control, 10, 50, and 100 µg/ml of taxifolin using semen from 8 Bermeya males. In the second experiment, semen from 7 Bermeya bucks was collected and extended at 20 °C using a Tris-citric acid-glucose medium supplemented with different concentrations of taxifolin and glutathione (GSH): control, 5 µM taxifolin, 1 mM GSH, and both antioxidants. In both experiments, two straws per buck were thawed in a water bath (37 °C, 30 s), pooled, and incubated at 38 °C. Motility (CASA) was assessed at 0, 2, and 5 h, and sperm physiology was assessed at 0 and 5 h by flow cytometry (viability, intact acrosome membrane, mitochondria membrane potential, capacitation, intracellular reactive oxygen species -ROS-, mitochondrial superoxide, and chromatin status). In experiment 2, an artificial insemination trial (AI) was included with 29 goats for testing the taxifolin 5-µM treatment on fertility. Data were analyzed with the R statistical environment using linear mixed-effects models. In experiment 1 and compared to the control, T10 increased progressive motility (P < 0.001) but taxifolin decreased total and progressive motility at higher concentrations (P < 0.001), both post-thawing and after the incubation. Viability decreased post-thawing in the three concentrations (P < 0.001). Cytoplasmic ROS decreased at 0 and 5 h at T10 (P = 0.049), and all doses decreased mitochondrial superoxide post-thawing (P = 0.024). In experiment 2, 5 µM taxifolin or 1 mM GSH (alone or combined) increased total and progressive motility vs. the control (P < 0.01), and taxifolin increased kinematic parameters such as VCL, ALH, and DNC (P < 0.05). Viability was not affected by taxifolin in this experiment. Both antioxidants did not significantly affect other sperm physiology parameters. The incubation significantly affected all the parameters (P < 0.004), overall decreasing sperm quality. Fertility after artificial insemination with doses supplemented with 5 µM taxifolin was 76.9% (10/13), not significantly different from the control group (69.2%, 9/13). In conclusion, taxifolin showed a lack of toxicity in the low micromolar range and could benefit goat semen cryopreservation.


Subject(s)
Semen Preservation , Semen , Animals , Male , Antioxidants/pharmacology , Cryopreservation/veterinary , Cryoprotective Agents/pharmacology , Flavonoids/pharmacology , Glutathione/pharmacology , Goats , Reactive Oxygen Species , Semen/physiology , Semen Preservation/veterinary , Sperm Motility , Spermatozoa/physiology , Superoxides
6.
Enferm. infecc. microbiol. clín. (Ed. impr.) ; 40(7): 388-395, Ago - Sep 2022. tab, graf
Article in English | IBECS | ID: ibc-207364

ABSTRACT

Objective:Calculate the efficiency of the EmERGE Pathway of Care for medically stable people living with HIV at the Hospital Clínic-IDIBAPS, Barcelona, Spain. Methods: 546 study participants were followed between 1st July 2016 and 30th October 2019 across three HIV outpatient clinics, but the virtual clinic was closed during the second year. Unit costs were calculated, linked to mean use outpatient services per patient year, one-year before and after the implementation of EmERGE. Costs were combined with primary and secondary outcomes. Results:Annual costs across HIV-outpatient services increased by 8%: €1073 (95%CI €999–€1157) to €1158 (95%CI €1084–€1238). Annual cost of ARVs was €7,557; total annual costs increased by 1% from €8430 (95%CI €8356–8514) to €8515 (95%CI €8441–8595). Annual cost for 433 participants managed in face-to-face (F2F) clinics decreased by 5% from €958 (95%CI 905–1018) to €904 (95%CI 863–945); participants transferred from virtual to F2F outpatient clinics (V2F) increased their annual cost by a factor of 2.2, from €115 (95%CI 94–139) to €251 (95%CI 219–290). No substantive changes were observed in primary and secondary outcomes. Conclusion: EmERGE Pathway is an efficient and acceptable intervention. Increases in costs were caused by internal structural changes. The cost reduction observed in F2F clinics were off-set by the transfer of participants from the virtual to the F2F clinics due to the closure of the virtual clinic during the second year of the Study. Greater efficiencies are likely to be achieved by extending the use of the Pathway to other PLHIV.(AU)


Objetivo: Calcular la eficiencia de la vía asistencial EmERGE para personas clínicamente estables que viven con VIH en el Hospital Clínic-IDIBAPS, en Barcelona, España. Métodos: Se realizó un seguimiento a 546 participantes del estudio, entre el 1 de julio de 2016 y el 30 de octubre de 2019, en tres clínicas ambulatorias de VIH, pero la clínica virtual se cerró durante el segundo año. Se calcularon los costes unitarios, vinculados al uso medio de los servicios ambulatorios por paciente al año, un año antes y después de la implementación de EmERGE. Los costes se combinaron con criterios de valoración principales y secundarios. Resultados: Los costes anuales en los servicios ambulatorios para el VIH aumentaron un 8%: 1.073 € (IC 95%: 999-1.157 €) a 1.158 € (IC 95%: 1.084-1.238 €). El coste anual de los fármacos antirretrovirales (ARV) fue de 7.557 €; los costes anuales totales aumentaron en un 1%, de 8.430 € (IC 95%: 8.356-8.514 €) a 8.515 € (IC 95%: 8.441-8.595 €).El coste anual para 433 participantes que recibieron tratamiento en clínicas presenciales (face to face, F2F) disminuyó en un 5%, de 958 € (IC 95%: 905-1.018 €) a 904 € (IC 95%: 863-945 €); los participantes transferidos de clínicas ambulatorias virtuales (V2F) a F2F aumentaron su coste anual en un factor de 2,2, de 115 € (IC 95%: 94-139 €) a 251 € (IC 95%: 219-290 €). No se observaron cambios sustanciales en los criterios de valoración principales y secundarios. Conclusión: La vía EmERGE es un tratamiento eficaz y aceptable. Los aumentos de los costes fueron el resultado de cambios estructurales internos. La reducción de costes observada en las clínicas F2F se compensó con la transferencia de participantes de las clínicas virtuales a las F2F debido al cierre de la clínica virtual durante el segundo año del estudio. Es probable que se logre una mayor eficiencia si se amplía el uso de la vía a otras personas que viven con VIH (PVVIH).(AU)


Subject(s)
Humans , Male , Female , HIV , Cost Efficiency Analysis , Spain , Ambulatory Care Facilities , Ambulatory Care , Continuity of Patient Care , HIV Infections/therapy , Microbiology , Communicable Diseases
7.
Article in English | MEDLINE | ID: mdl-35906033

ABSTRACT

OBJECTIVE: Calculate the efficiency of the EmERGE Pathway of Care for medically stable people living with HIV at the Hospital Clínic-IDIBAPS, Barcelona, Spain. METHODS: 546 study participants were followed between 1st July 2016 and 30th October 2019 across three HIV outpatient clinics, but the virtual clinic was closed during the second year. Unit costs were calculated, linked to mean use outpatient services per patient year, one-year before and after the implementation of EmERGE. Costs were combined with primary and secondary outcomes. RESULTS: Annual costs across HIV-outpatient services increased by 8%: €1073 (95%CI €999-€1157) to €1158 (95%CI €1084-€1238). Annual cost of ARVs was €7,557; total annual costs increased by 1% from €8430 (95%CI €8356-8514) to €8515 (95%CI €8441-8595). Annual cost for 433 participants managed in face-to-face (F2F) clinics decreased by 5% from €958 (95%CI 905-1018) to €904 (95%CI 863-945); participants transferred from virtual to F2F outpatient clinics (V2F) increased their annual cost by a factor of 2.2, from €115 (95%CI 94-139) to €251 (95%CI 219-290). No substantive changes were observed in primary and secondary outcomes. CONCLUSION: EmERGE Pathway is an efficient and acceptable intervention. Increases in costs were caused by internal structural changes. The cost reduction observed in F2F clinics were off-set by the transfer of participants from the virtual to the F2F clinics due to the closure of the virtual clinic during the second year of the Study. Greater efficiencies are likely to be achieved by extending the use of the Pathway to other PLHIV.


Subject(s)
Ambulatory Care Facilities , HIV Infections , Ambulatory Care , Continuity of Patient Care , HIV Infections/therapy , Humans , Spain
8.
Cir Pediatr ; 35(2): 99-101, 2022 Apr 01.
Article in English, Spanish | MEDLINE | ID: mdl-35485760

ABSTRACT

INTRODUCTION: Infantile hemangiomas with multi-organ involvement are rare, and presentation in the form of uncontrollable bleeding is exceptional. CLINICAL CASE: 4-day-old newborn with multiple hepatocutaneous hemangiomas and a purplish vascular lesion in the third finger of the right hand. In the third week of life, the lesion became ulcerated and caused uncontrollable bleeding. Therefore, urgent amputation was required, with a histopathological result of GLUT-1 positive infantile hemangioma, and an architecture compatible with arteriovenous malformation in the deep portion. Imaging tests revealed it was a high-flow lesion. Genetic tests (MAP2KI, RASA 1, EPHB4, GNAQ, and GNA 11) were negative. Patient progression was good, with hepatocutaneous lesions receding and eventually disappearing. DISCUSSION: No explanation has been given yet as to why the same vascular lesion may behave differently in different patients. New mutations may be accountable for this.


INTRODUCCION: Los hemangiomas infantiles con afectación multivisceral son escasos y su presentación en forma de hemorragia incontrolable es excepcional. CASO CLINICO: Recién nacido de 4 días de vida que presentaba múltiples hemangiomas hepatocutáneos y una lesión vascular púrpura-violácea, que abarcaba el tercer dedo de la mano derecha. En la tercera semana de vida, la lesión presentó ulceración y un sangrado incoercible requiriendo amputación urgente, con un resultado histopatológico de hemangioma infantil GLUT-1 positivo, con arquitectura compatible con malformación arteriovenosa en la parte profunda. Las pruebas de imagen mostraron que se trataba de una lesión de alto flujo. La genética (MAP2KI, RASA 1, EPHB4, GNAQ y GNA 11) fue negativa. La evolución del paciente fue buena, con la involución de las lesiones hepatocutáneas hasta su desaparición. COMENTARIOS: La divergencia en el comportamiento de las mismas lesiones vasculares en diferentes pacientes aún no ha encontrado explicación. Es posible que nuevas mutaciones puedan darnos una respuesta.


Subject(s)
Hemangioma , Diagnostic Imaging , Hemangioma/diagnosis , Hemangioma/pathology , Humans , Infant, Newborn
9.
Cir. pediátr ; 35(2): 1-3, Abril, 2022. ilus
Article in Spanish | IBECS | ID: ibc-203580

ABSTRACT

Introducción: Los hemangiomas infantiles con afectación multivisceral son escasos y su presentación en forma de hemorragia incon-trolable es excepcional.Caso clínico: Recién nacido de 4 días de vida que presentaba múltiples hemangiomas hepatocutáneos y una lesión vascular púrpura-violácea, que abarcaba el tercer dedo de la mano derecha. En la tercera semana de vida, la lesión presentó ulceración y un sangrado incoercible requiriendo amputación urgente, con un resultado histopatológico dehemangioma infantil GLUT-1 positivo, con arquitectura compatible con malformación arteriovenosa en la parte profunda. Las pruebas de imagen mostraron que se trataba de una lesión de alto flujo. La genética (MA-P2KI, RASA 1, EPHB4, GNAQ y GNA 11) fue negativa. La evolución del paciente fue buena, con la involución de las lesiones hepatocutáneas hasta su desaparición.Comentarios: La divergencia en el comportamiento de las mismaslesiones vasculares en diferentes pacientes aún no ha encontrado explicación. Es posible que nuevas mutaciones puedan darnos una respuesta.


Introduction: Infantile hemangiomas with multi-organ involve-ment are rare, and presentation in the form of uncontrollable bleedingis exceptional.Clinical case:4-day-old newborn with multiple hepatocutaneous he-mangiomas and a purplish vascular lesion in the third finger of the righthand. In the third week of life, the lesion became ulcerated and causeduncontrollable bleeding. Therefore, urgent amputation was required, witha histopathological result of GLUT-1 positive infantile emangioma,and an architecture compatible with arteriovenous malformation in thedeep portion. Imaging tests revealed it was a high-flow lesion. Genetic tests (MAP2KI, RASA 1, EPHB4, GNAQ, and GNA 11) were negative.Patient progression was good, with hepatocutaneous lesions recedingand eventually disappearing.Discussion: No explanation has been given yet as to why the samevascular lesion may behave differently in different patients. New muta-tions may be accountable for this.


Subject(s)
Humans , Infant , Hemangioma/diagnosis , Hemangioma/pathology , Genetic Testing , Diagnostic Imaging , General Surgery , Pediatrics
10.
Article in English, Spanish | MEDLINE | ID: mdl-33887235

ABSTRACT

This series of 2 articles on dermatopathologic diagnoses reviews conditions in which granulomas form. Part 1 clarifies concepts, discusses the presentation of different types of granulomas and giant cells, and considers a large variety of noninfectious diseases. Some granulomatous diseases have a metabolic origin, as in necrobiosis lipoidica. Others, such as granulomatous mycosis fungoides, are related to lymphomas. Still others, such as rosacea, are so common that dermatologists see them nearly daily in clinical practice.

11.
Article in English, Spanish | MEDLINE | ID: mdl-33891884

ABSTRACT

Part 2 of this series on granulomatous diseases focuses on skin biopsy findings. Whereas the first part treated noninfectious conditions (metabolic disorders and tumors, among other conditions), this part mainly deals with various types of infectious disease along with other conditions seen fairly often by clinical dermatologists.

12.
Article in English, Spanish | MEDLINE | ID: mdl-33549335

ABSTRACT

OBJECTIVE: Calculate the efficiency of the EmERGE Pathway of Care for medically stable people living with HIV at the Hospital Clínic-IDIBAPS, Barcelona, Spain. METHODS: 546 study participants were followed between 1st July 2016 and 30th October 2019 across three HIV outpatient clinics, but the virtual clinic was closed during the second year. Unit costs were calculated, linked to mean use outpatient services per patient year, one-year before and after the implementation of EmERGE. Costs were combined with primary and secondary outcomes. RESULTS: Annual costs across HIV-outpatient services increased by 8%: €1073 (95%CI €999-€1157) to €1158 (95%CI €1084-€1238). Annual cost of ARVs was €7,557; total annual costs increased by 1% from €8430 (95%CI €8356-8514) to €8515 (95%CI €8441-8595). Annual cost for 433 participants managed in face-to-face (F2F) clinics decreased by 5% from €958 (95%CI 905-1018) to €904 (95%CI 863-945); participants transferred from virtual to F2F outpatient clinics (V2F) increased their annual cost by a factor of 2.2, from €115 (95%CI 94-139) to €251 (95%CI 219-290). No substantive changes were observed in primary and secondary outcomes. CONCLUSION: EmERGE Pathway is an efficient and acceptable intervention. Increases in costs were caused by internal structural changes. The cost reduction observed in F2F clinics were off-set by the transfer of participants from the virtual to the F2F clinics due to the closure of the virtual clinic during the second year of the Study. Greater efficiencies are likely to be achieved by extending the use of the Pathway to other PLHIV.

13.
Actas Dermosifiliogr (Engl Ed) ; 112(2): 103-117, 2021 Feb.
Article in English, Spanish | MEDLINE | ID: mdl-33075291
14.
Actas Dermosifiliogr (Engl Ed) ; 112(1): 1-13, 2021 Jan.
Article in English, Spanish | MEDLINE | ID: mdl-33045208

ABSTRACT

Vascular occlusion has multiple, diverse clinical manifestations, some of which can have grave consequences for patients. The causes of vascular occlusion are also highly variable, ranging from thrombi triggered by the uncontrolled activation of coagulation mechanisms, on the one hand, to endothelial dysfunction or occlusion by material extrinsic to the coagulation system on the other. In a 2-part review, we look at the main causes of vascular occlusion and the key clinical and histopathologic findings. In this first part, we focus on vascular occlusion involving thrombi.


Subject(s)
Thrombosis , Blood Coagulation , Humans , Thrombosis/etiology
15.
J Transl Sci ; 5(2)2019 Apr.
Article in English | MEDLINE | ID: mdl-30906574

ABSTRACT

INTRODUCTION: Tumors over-expressing the human epithelial receptor 2 (HER2) or exhibiting amplification or mutation of its proto-oncogene have a poorer prognosis. Using trastuzumab and/or other HER2 targeted therapies can increase overall survival in patients with HER2(+) tumors making it critical to accurately identify patients who may benefit. We report on a Phase 0 study of the imaging agent, 111In-CHX-A"-DTPA trastuzumab, in patients with known HER2 status to evaluate its safety and biodistribution and to obtain preliminary data regarding its ability to provide an accurate, whole-body, non-invasive means to determine HER2 status. METHODS: 111In-CHX-A"-DTPA trastuzumab was radiolabeled on-site and slowly infused into 11 patients who underwent single (n=5) or multiple (n=6) ɣ-camera (n=6) and/or SPECT (n=8) imaging sessions. RESULTS: No safety issues were identified. Visual and semi-quantitative imaging data were concordant with tissue HER2 expression profiling in all but 1 patient. The biodistribution showed intense peak liver activity at the initial imaging timepoint (3.3h) and a single-phase clearance fit of the average time-activity curve (TAC) estimated t1/2=46.9h (R2=0.97; 95%CI 41.8 to 53h). This was followed by high gastrointestinal (GI) tract activity peaking by 52h. Linear regression predicted GI clearance by 201.2h (R2 =0.96; 95%CI 188.5 to 216.9h). Blood pool had lower activity with its maximum on the initial images. Non-linear regression fit projected a t1/2=34.2h (R2 =0.96; 95%CI 25.3 to 46.3h). Assuming linear whole-body clearance, linear regression projected complete elimination (x-intercept) at 256.5hr (R2=0.96; 95%CI 186.1 to 489.2h). CONCLUSION: 111In-CHX-A"-DTPA trastuzumab can be safely imaged in humans. The biodistribution allowed for visual and semiquantitative analysis with results concordant with tissue expression profiling in 10 of 11 patients. Advances in Knowledge and Implications for Patient Care Using readily available components and on-site radiolabeling 111In-CHX-A"-DTPA trastuzumab SPECT imaging may provide an economical, non-invasive means to detect HER2 over-expression.

16.
Oncogene ; 36(25): 3541-3552, 2017 06 22.
Article in English | MEDLINE | ID: mdl-28114280

ABSTRACT

Tumor suppressor genes and the immune system are critical players in inhibiting cancer initiation and/or progression. However, little is known about whether a tumor suppressor gene can function through both immune-dependent and -independent mechanisms. Retinoic acid receptor responder 2 (RARRES2) is transcriptionally downregulated in multiple cancer types. Previous studies suggested that it can serve as an immune-dependent tumor suppressor by acting as a chemoattractant to recruit anticancer immune cells expressing its receptor, the chemerin chemokine receptor 1 (CMKLR1), to sites of tumor. In this study, we investigated the role of RARRES2 in adrenocortical carcinoma (ACC), a rare lethal malignancy in which aberrant Wnt/ß-catenin signaling is frequently detected. We show that RARRES2 expression is downregulated in ACC as compared with normal and benign adrenocortical tissues, which is a result of CpG hypermethylation. Despite minimal CMKLR1 expression and lack of phenotypic tumor-suppressive effect with exogenous RARRES2 treatment, RARRES2 overexpression in ACC cell lines not only reduced cell proliferation, cell invasion and tumorigenicity in vitro, but also inhibited tumor growth in vivo in two immunodeficient mouse xenograft models. Mechanistically, RARRES2 overexpression in ACC cells inhibited Wnt/ß-catenin pathway activity by promoting ß-catenin phosphorylation and degradation, it also inhibited the phosphorylation of p38 mitogen-activated protein kinase. Thus our study identifies RARRES2 as a novel tumor suppressor for ACC, which can function through an immune-independent mechanism.


Subject(s)
Adrenal Cortex Neoplasms/metabolism , Adrenocortical Carcinoma/metabolism , Chemokines/metabolism , Intercellular Signaling Peptides and Proteins/metabolism , Proteolysis , Tumor Suppressor Proteins/metabolism , Wnt Signaling Pathway , beta Catenin/metabolism , p38 Mitogen-Activated Protein Kinases/metabolism , Adrenal Cortex Neoplasms/genetics , Adrenocortical Carcinoma/genetics , Animals , Cell Line, Tumor , Chemokines/genetics , Female , Heterografts , Humans , Intercellular Signaling Peptides and Proteins/genetics , Male , Mice , Neoplasm Transplantation , Phosphorylation/genetics , Tumor Suppressor Proteins/genetics , beta Catenin/genetics , p38 Mitogen-Activated Protein Kinases/genetics
17.
Br J Dermatol ; 174(6): 1370-1374, 2016 Jun.
Article in English | MEDLINE | ID: mdl-26694762

ABSTRACT

Kaposi sarcoma (KS) is an angioproliferative tumour that develops as a result of an infection by human herpesvirus 8, which is considered a necessary cause but not sufficient. Other factors - genetic, immunological and environmental - might play a role in the development of the disease. We report a case of KS secondary to endogenous Cushing syndrome (ECS) due to a pituitary adenoma, an association that has been reported only once. We also conducted a search through the Medline and PubMed databases for cases involving KS and ECS, finding only three additional cases that shared common clinical and prognostic features with ours. ECS might favour the development of KS due to immunosuppression. Dermatologists and other clinicians should be aware of this association, as it might be an underdiagnosed condition. It also has an important impact on the management of KS, and based on this review it relies on a good prognosis when ECS is well controlled.

20.
Cuad. med. forense ; 17(4): 197-202, oct.-dic. 2011. ilus
Article in Spanish | IBECS | ID: ibc-102296

ABSTRACT

La hiperplasia lipomatosa del septum interauricular (HLSI) es una entidad benigna de naturaleza desconocida que se caracteriza por la acumulación de grasa no encapsulada en el interior del surco interauricular sin participación de la fosa oval. A pesar de su carácter benigno, clínicamente se ha asociado con arritmias cardiacas, generalmente de origen supraventricular, insuficiencia cardiaca y muerte súbita. Presentamos el caso de una mujer de edad media (47 años), con obesidad mórbida e insuficiencia cardiaca congestiva, que falleció súbitamente y la autopsia puso de manifiesto una HLSI. El estudio macroscópico de la pieza de resección mostró un tamaño de 5 x 2,5 cm y la histología típica de esta entidad, es decir, adipocitos maduros y pocos lipoblastos entremezclados con miocitos auriculares. Hemos analizado microscópicamente los nodos sinoauricular y auriculoventricular, lo que puso de manifiesto que la infiltración grasa los rodeada pero no los aislaba del miocardio auricular de trabajo circundante. El miocardio del ventrículo izquierdo y del tabique interventricular presentaba áreas con una intensa fibrosis intersticial por isquémica crónica y que esta fibrosis pudo ser la causa de una arritmia ventricular y muerte súbita. Aunque esta entidad es cada vez más frecuentemente reconocida gracias al desarrollo creciente de las técnicas de imagen no invasivas, rara vez necesita ser corregida quirúrgicamente (AU)


The lipomatous hyperplasia of the interatrial septum (LHIS) is a benign entity of unknown nature, characterized by the accumulation of fat tissue not encapsulated into the interatrial groove without participation of the fossa ovalis. Despite its benign nature, it has been clinically associated with cardiac arrhythmias, usually of supraventricular origin, heart failure and sudden death. We present the case of a woman of middle age (47 years), with morbid obesity and heart failure congestive who died suddenly and the autopsy revealed a LHIS. The macroscopic study of resection piece showed a size of 5 x 2.5 cm and the typical histology of this entity, i.e. mature adipocytes and few lipoblastos interspersed with atrial myocytes. We have analysed microscopically both sinoatrial and atrioventricular nodes, which they revealed fat tissue infiltration that surrounded them but not isolated from atrial working myocardium. The interventricular septum and left ventricle myocardium presented areas with severe interstitial fibrosis by chronic ischemic and this fibrosis may be the cause of ventricular arrhythmia and sudden death. Although this entity is most frequently recognized due to the development of noninvasive imaging techniques, rarely needs to be corrected surgically (AU)


Subject(s)
Humans , Female , Middle Aged , Lipoma/diagnosis , Autopsy/methods , Hyperplasia/diagnosis , Atrial Septum/pathology , Death, Sudden, Cardiac , Forensic Pathology/methods , Heart Neoplasms/complications , Obesity, Morbid/complications
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